Evidence map›Paper›PMID 19717471›Full record

ArticleHuman molecular genetics2009

Common fragile sites are characterized by histone hypoacetylation.

Yanwen Jiang, Isabelle Lucas, David J Young, Elizabeth M Davis, Theodore Karrison, Joshua S Rest, Michelle M Le Beau

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
10.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 92 citations in OpenAlex.

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  12. Rescue from replication stress during mitosis.Cell cycle (Georgetown, Tex.) · 2017
    Review
  13. WWOX: a fragile tumor suppressor.Experimental biology and medicine (Maywood, N.J.) · 2015
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Yanwen JiangCommittee on Cancer Biology, The University of Chicago, Chicago, IL 60637, USA.
Isabelle Lucas
David J Young
Elizabeth M Davis
Theodore Karrison
Joshua S Rest
Michelle M Le Beau
University of Chicago · USStony Brook University · US

Funding

MOLECULAR ANALYSIS OF CHROMOSOMAL FRAGILE SITESR01CA041644 · NCI · UNIVERSITY OF CHICAGO · PI LE BEAU, MICHELLE M · 1986 to 2005
$2.1M
NCI NIH HHS CA41644
6 · The paper itself

Abstract

Common fragile sites (CFSs) represent large, highly unstable regions of the human genome. CFS sequences are sensitive to perturbation of replication; however, the molecular basis for the instability at CFSs is poorly understood. We hypothesized that a unique epigenetic pattern may underlie the unusual sensitivity of CFSs to replication interference. To examine this hypothesis, we analyzed chromatin modification patterns within the six human CFSs with the highest levels of breakage, and their surrounding non-fragile regions (NCFSs). Chromatin at most of the CFSs analyzed has significantly less histone acetylation than that of their surrounding NCFSs. Trichostatin A and/or 5-azadeoxycytidine treatment reduced chromosome breakage at CFSs. Furthermore, chromatin at the most commonly expressed CFS, the FRA3B, is more resistant to micrococcal nuclease than that of the flanking non-fragile sequences. These results demonstrate that histone hypoacetylation is a characteristic epigenetic pattern of CFSs, and chromatin within CFSs might be relatively more compact than that of the NCFSs, indicating a role for chromatin conformation in genomic instability at CFSs. Moreover, lack of histone acetylation at CFSs may contribute to the defective response to replication stress characteristic of CFSs, leading to the genetic instability characteristic of this regions.

Indexed as

Chromosome Fragile SitesGenome, HumanAcetylationCell LineChromatinEpigenesis, GeneticFemaleGenomic InstabilityHistonesHumansChromatinHistones

Identifiers

PMID19717471
PMCPMC2773265
OpenAlexW2119088892

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.